public class Array01 {
	public static void main(String[] args) {
		// double arr[] = {3, 5, 1, 3.4, 2, 50};
		// double totalWeight = 0;
		// for(int i = 0; i < arr.length; i++) {
		// 	totalWeight += arr[i];
		// }
		// System.out.println("totalWeight=" + totalWeight + " avgWeight=" + (totalWeight / arr.length));
		
		//创建一个double数组，大小5
		double scores[] = new double[5];
	}
}